## Science model on energy transformations

I have got an assignment from school about making an energy transformation model and I have no idea what to do! Can you help me? (Posted by Maddy on 28 Aug 2011) (Expecting suggestions from visitors and members) Answer: There are many simple models for energy transformation. One of the themes for this years Science […]

## A Numerical Problem on conservation of momentum – An exploding shell

An 80 kg shell is flying at a speed of 36km/h. It explodes into two pieces and one piece of mass 20 kg stops. What is the velocity of other piece? (It’s a simple problem. Expect the visitors to answer soon) Incoming search terms:a 80 kg shell is flyingconservation of momentum problems shellconservation of momentum definition […]

## Dimensions and conversion of units

The height of mercury column in a barometer in a Calcutta laboratory was recorded to be 75 cm. Calculate this pressure in SI and CGS units using the following data : specific gravity is 13.6, density of water is 1000 kg/m3, g is 9.8 m/s2 at Calcutta. Pressure = hρg in usual symbols Your email:

## A Numerical Problem from Projectile Motion

A short is fired from a gun on the top of a hill 90m high with velocity 80m/s at an angle of 30 degree with the horizontal. Find the horizontal distance between the vertical line through the gun and the ponit where the shot strikes the ground? (Shilpa asked this question) Answer: Take Sy= -90m…… Continue reading A Numerical Problem from Projectile Motion

## Physics Songs

One student requested that he was given an assignment on composing a song based on the laws and principles of Physics. So, I am posting some links here to various sites which posted Songs based on Principles of Physics. Bernouli’s Theorem http://www.haverford.edu/physics/songs/ http://www.dctech.com/physics/humor/songs.php http://www.songsforteaching.com/physicssongs/ If you find more such websites, please post them as comments.